The PL011 PrimeCell UART is an AMBA compliant SoC peripheral
that is developed, tested, and licensed by ARM Limited. The 24MHz
reference clock to the UARTs is from the crystal oscillator that
is part of OSC0.
Table 4.89. UART implementation
| Property | Value |
|---|
| Location | Southbridge |
| Memory base address | UART 0: 0x10009000 UART 1: 0x1000A000 UART 2: 0x1000B000 UART 3: 0x1000C000
|
| Interrupt | UART 0: 44 UART 1: 45 UART 2: 46 UART 3: 47
|
| DMA | UART 0 TX: 7 UART 0 RX: 6 UART 1 TX: 5 UART 1 RX: 4 UART 2 TX: 3 UART 2 RX: 2
NoteYou must set DMAPSR = b01 in
the SYS_DMAPSR register to select this peripheral for DMA access. |
| Release version | ARM UART PL011 r1p3 |
| Platform Library support | - _platform_uart_entry
Handles all channel operations for the UART channels,
reading characters, writing characters, and opening the channel.
|
| Reference documentation | PrimeCell UART (PL011) Technical
Reference Manual
ARM DDI 0183 |
PDF version